Yes, stands for plotter twitter postcard exchange. I think there is no real info online. It was organized by Paul Butler[1] on twitter. In the end you but your info into an google sheet and he organized sending out emails with the addresses for your postcards to send to.
Sure. The plotter I've bought is the AxiDraw SE/A3[1]. There is an Inkscape plugin so you can easily plot SVG graphics. I generate the SVG graphics using small JavaScript programs. Thats already it.
Here[2] is a more detailed resource list to dig into the topic
I already have a 3D printer and I’ve seen some projects that made it possible to use the 3D printer as a plotter. So probably I’d try that route first.
I was actually more interested in the software aspect to generate those arts.
This a is a really wide field. Basically its starts with one of the standard algorithms, like and l-system, a voronoi diagram, or simple combination of sin and cos to draw shapes. Have a look at thi-ng[1], just as example for a library that has implemented a lot of this kind of algorithms. The next step in my process is to think about how to destroy this forms as most of them are used a lot in this field and become boring. Using perlin noise as input to arguments of the algorithms is one way to do this. The other part is to make most all of the input variables easily changeable as most of the time the whole process is like writing the program and then spend a lot of time adapt the parameters until you get some interesting output. So in the end I have a small Svelte app, using Svelte only cause the data binding for the inputs so simple, which has tons of sliders that renders an SVG that can be saved in the end.
